Donnchad mac Flaithbertach

Donnchad mac Flaithbertach (1034-), also known as Donough McLafferty in English, was a courtier of Ulster under King Einri of Eire. Donnchad was the brother of Ruaidri mac Flaithbertach and the uncle of Aed mac Ruaidri, and he was known to be a cynical man.